On the Accuracy of Nielsen Homescan Data

Researchers use Nielsen Homescan data, which provide detailed food-purchase information from a panel of U.S. households, to address a variety of important research topics. However, some question the credibility of the data since the data are self-recorded and the recording process is time-consuming. Matching purchase records from 2004 Homescan data with data obtained from a large grocery retailer, it is evident that quantities purchased are reported more accurately in Homescan than are prices. Many of the price differences may be driven by the way Nielsen imputes prices: when available, Nielsen uses store-level prices instead of the actual price paid by the household. There are also differences by household type in the tendency to make mistakes that are correlated with demographic variables. However, the fraction of variance explained by the documented recording errors is in line with other research data sets for which cross-validation studies have been conducted.Nielsen, Homescan, scanner data, validation study, Agricultural and Food Policy, Consumer/Household Economics, Demand and Price Analysis, Institutional and Behavioral Economics,

A summary of research relating to reading in the intermediate grades

Purpose: To develop and evaluate a method of quick perception with geography vocabulary to see if; (a) quick perception accelerates growth in comprehension, (b) effects speed of reading, and (c) improves reading ability. Materials used: (1) Vocabulary selected from: a) Atwood, The Americas, b) McConnel, Living in the Americas, c) Smith, World Folk. (2) Durrell-Sullivan Achievement Tests, Intermediate Forms A and B. (3) Oral Reading Tests for Speed from the "Durrell Analysis of Reading Difficulty". (4) Silent Reading and Vocabulary Inventory Tests constructed by the writer. (5) Lantern slide projector; screen; words and phrases typed on amber cellphone, faced with red carbon paper, enclosed in glass slides, hinged with tape at the top [TRUNCATED

The role of marketing in new ventures: How marketing activities should be organized in firms’ infancy

Although marketing activities are vital for new ventures (NVs) to ensure growth and survival, previous research is silent on how to organize them in firms’ infancy. The entrepreneurship literature focuses on which marketing activities to perform in NVs but not on how to organize these activities, whereas the marketing literature concentrates on how to organize marketing activities in established firms but not in NVs, which face specific opportunities and challenges in their early stage of development. This article aims to tackle this research gap by examining marketing’s role within NVs’ organization. Drawing on in-depth interviews with managers, we identify two key organizational dimensions: marketing’s dispersion (related to the proliferation and, thus, wide anchoring of marketing responsibilities) and marketing’s structuration (related to the manifestation and, thus, deep anchoring of marketing responsibilities). Through a field survey and archival data, we show that marketing’s dispersion enhances NV profitability, while marketing’s structuration decreases it, and that with increasing marketing influence (i.e., power of marketing actors) in NVs and NV maturity (i.e., age and size), this diametrical pattern of effects becomes less pronounced. Overall, the findings provide novel theoretical and practical insights into the organizational design of marketing in firms’ infancy.© The Author(s) 2023. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.fi=vertaisarvioitu|en=peerReviewed

Towards effectively appraising online stores

This paper introduces research being carried out into the measurement of the quality of e-commerce systems. Considerable work has been done on software metrics in the last few decades but e-commerce specific metrics seem only applicable to already deployed systems. It is proposed that a set of metrics is needed, which can be applied from the earlier stages of E-Commerce system development to improve risk management. This paper attempts to appraise e-commerce systems by proposing a set of essential attributes for an e-commerce site to succeed. This paper also serves as groundwork for future e-commerce metrication work based on these same attributes.peer-reviewe

Computational intelligence approaches to robotics, automation, and control [Volume guest editors]

No abstract available

El papel de la evaluación negociada en el desarrollo de la autonomía del estudiante en la escuela secundaria norteamericana: un ciclo de investigación-acción

RESUMEN: En este artículo presento hallazgos de una investigación-acción cuyo objetivo era averiguar en qué medida una forma alternativa de evaluación negociada promovería la autonomía de los estudiantes. El estudio se realizó en una escuela secundaria norteamericana. Las principales estrategias de acción fueron el uso de símbolos en la retroalimentación y la inclusión de criterios negociados con los estudiantes en el diseño de una rúbrica que se utilizó como instrumento de evaluación y calificación. Los resultados mostraron que los estudiantes desarrollaron su autonomía en tres dimensiones: apropiación de su proceso de aprendizaje, metacognición y pensamiento crítico, lo que influenció positivamente el desarrollo de sus habilidades de escritura tanto en inglés como en español. Asimismo se encontró que el papel del profesor es de vital importancia para establecer condiciones propicias en el desarrollo de la autonomía de los estudiantes.ABSTRATC: In this article I present some findings of an action research study intended to find out to what extent a teacher-student partnership in writing assessment could promote high school students’ autonomy. The study was conducted in a U.S. school. Two main action strategies in the assessment process were the use of symbols as the form of feedback and the design of a rubric containing criteria negotiated with the students as the scoring method. Results showed that the students developed some autonomy reflected in three dimensions: ownership of their learning process, metacognition, and critical thinking, which positively influenced an enhancement of their writing skills in both English and Spanish. Likewise, the role of the teacher was found to be paramount to set appropriate conditions for the students’ development of autonomy

Students\u27 Information Literacy: a Perspective From Mathematical Literacy

Information literacy is mostly seen from the perspective of library science or information and communication technology. Taking another point of view, this study was aimed to explore students\u27 information literacy from the perspective of mathematical literacy. For this purpose, a test addressing Programme for International Student Assessment (PISA) mathematics tasks were administered to 381 eighth and ninth graders from nine junior high schools in the Province of Yogyakarta. PISA mathematics tasks which were used in this test had specific characteristics regarding information processing, i.e. containing superfluous information, having missing information, and requiring connection across information sources. An error analysis was performed to analyze students\u27 incorrect responses. The result of this study shows that students did not acquire three characteristics of information literacy; i.e. recognizing information needs, locating and evaluating the quality of information, and making effective and ethical use of information. This result indicates students\u27 low ability in information literacy